ACTIVE SYNCHRONIZING RING

摘要

An improved system, apparatus and method for controlling vane angles in a gas turbine engine, and more specifically, for correcting vane angle error in a gas turbine engine. An active synchronization ring comprises a plurality of micro-actuators coupled to the synchronization ring to correct distortion in the synchronization ring. The micro-actuators apply a bending moment to the synchronization ring to cancel or compensate for synchronization ring distortion. The micro-actuators may be controlled open loop or closed loop. Strain sensors measure ring distortion and provide signals to the controller for closed loop control.

主权项

1. A system for controlling individual vane angles in a gas turbine engine, comprising:
a synchronization ring having a plurality of micro-actuators coupled to said synchronization ring, each of said micro-actuators create a bending moment in said synchronization ring, each of said micro-actuators having an input for receiving a control signal; and an actuator pivotally attached to said synchronization ring for rotating said ring about an axis.